A study on the use of Mount Pinatubo pumice as complete substitute for coarse and fine aggregate of lightweight concrete for structural applications.
Date of Publication
1998
Document Type
Bachelor's Thesis
Degree Name
Bachelor of Science in Civil Engineering
Subject Categories
Civil Engineering
College
Gokongwei College of Engineering
Department/Unit
Civil Engineering
Abstract/Summary
In the Philippines, there is an abundance of natural lightweight aggregates like pumice. According to the Philippine Institute of Volcanology and Seismology (PHIVOLCS), the 1991 eruption of Mount Pinatubo spewed about 0.2 billion cubic meters of volcanic ash and pumice. An undergraduate thesis made in 1992 by fellow La Sallian students confirmed the lightweight aggregate properties of Mount Pinatubo pumice.
In the search for new, suitable and economic building materials, this thesis centered on the structural evaluation of lightweight concrete with varying water-cement-pumice proportions. The concrete specimens were evaluated in terms of their densities and their compressive and flexural strengths attained by means of mechanical testing.
The researchers have noted that lightweight concrete with the complete substitution of Mount Pinatubo pumice as coarse and fine aggregates is not recommended for structural applications. The concrete samples produced in the study revealed that they do qualify as lightweight concrete for structural applications in terms of their densities since they did not exceed the given range of density for structural lightweight concrete which is 1850 kg/m3. However, the highest compressive strength attained in the study is 37.88% lower than the target compressive strength of 17 MPa (2500 psi), which is the required minimum average 28-day compressive strength for lightweight aggregates for structural concrete as stipulated in ASTM Standard C 330-89.
Abstract Format
html
Language
English
Format
Accession Number
TU09500
Shelf Location
Archives, The Learning Commons, 12F, Henry Sy Sr. Hall
Physical Description
137 leaves ; Computer print-out.
Keywords
Lightweight concrete; Volcanic ash, tuff, etc.
Recommended Citation
Bondoc, B. B., Pernia, M. S., & Zabala, J. C. (1998). A study on the use of Mount Pinatubo pumice as complete substitute for coarse and fine aggregate of lightweight concrete for structural applications.. Retrieved from https://animorepository.dlsu.edu.ph/etd_bachelors/10247
